﻿class BackgroundChanger {
    element: HTMLElement;

    constructor(element: HTMLElement) {
        this.element = element;

    }
    

    BackgroundChange() {
        var CurrentHour = new Date().getHours();

        switch (CurrentHour) {
            case 18: case 19: case 20: case 21: case 22: case 23: case 0: case 1: case 2: case 3: 
                this.element.style.backgroundColor = "#333333";
                break;
            case 4: case 5: case 6: case 7: case 8:
                this.element.style.backgroundColor = "#0066CC";
                break;
            case 9: case 10: case 11: case 12: case 13: case 14: case 15: case 16: case 17:
                this.element.style.backgroundColor = "#FFFF66";
                break;
           

        }

 
    }


}



window.onload = () =>
{
    var bc = new BackgroundChanger(document.getElementById("body"));
    bc.BackgroundChange();
};